I like these strings. They are way better than the standard strings I have used on some of my yoyos. They are more robust and last at least more than a day with intensive use. Not too thin and not too thick. However, I don't want to be an idiot, but the seller doesn't get 5 stars from me for sending me this little tiny bundle of rope and putting it in a weirdly big box. It must have been someone's first day at work. A normal letter to send a character string would suffice.